批处理命令修改文件名

@echo off
chcp 65001 1

rem 查找关键字，添加前缀
set keyword=ljx
set replacement=%keyword%
set prefix=004-

rem 查找当前目录下符合条件的文件并修改
for %%f in (*%keyword%*) do (
    set "filename=%%~nf"
    set "extension=%%~xf"
    set newname=!filename!

    rem 替换关键字
    set newname=!newname:%keyword%=%replacement%!
    set newname=%prefix%!newname!
    ren "%%f" "!newname!!extension!"
)

endlocal